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Finding the Fourth Proportional to 571,435.84, 788,661.62 and 353,714.32

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Solution

The fourth proportional to 571,435.84, 788,661.62 and 353,714.32 is: 488,175.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,435.84 : 788,661.62 = 353,714.32 : x
  2. Step 2: Convert to fraction form
    571,435.84/788,661.62 = 353,714.32/x
  3. Step 3: Cross multiply
    571,435.84x = 788,661.62 × 353,714.32
  4. Step 4: Simplify right side
    571,435.84x = 278,960,908,628.40
  5. Step 5: Solve for x
    x = 278,960,908,628.40/571,435.84
  6. Step 6: Final answer
    x = 488,175.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.